Machine for cutting shingles



' and down between them.

UNITED sTATEs PATENT oEEioE.

WILLIAM WOOD, OF WESTPORT, CONNECTICUT.

MACHINE FOR CUTTING SHINGLES.

Specification of Letters Patent No. 7,010, dated January 8, 1850.

To all whom t may concern Be it known that I, VVILL-IAM Woon, of

and' useful Improvement in Machines for Cutting Shingles, which is described as follows, reference being had to the annexed drawings of the same, making part of this specification.

Figure 1, is a top or birds eye View of the improved machine. Fig. 2, is a longitudinal section of ditto at the line of Fig. 1.`

Fig. 3, is a cross section of ditto at the line 0 o of Fig. 1. Fig. 4, is a side view of the horizontal shaft, sliding cam, and other attachments on a larger scale. Fig. 5, is an end'view of the sliding cam, on the same scale.

Similar letters in the figures refer to cor! responding parts.

The nature of this inventlon and improvement consists in securing the block of wood, from which the shingles are to be cut, to aI vibrating carriage, arranged on suitableways immediately'in front of an inclined and down movement of the knife, by means of springs, notched bar, cams and other appendages, in such a manner as to cause the carriage to vibrate and adjust the wood in such relation to the knife to cut a tapered shingle at each downward movement of said ife. To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.-

A is the frame, made of a rectamgulan` form in front, and provided with ways (as) bound with iron at its upper part, and with inclined fender posts at its back, grooved on their sides nearest each other to allow of a trapezodial formed frame or gate (b), having a knife secured in the same, moving up B is a horizontal transverse shaft, having a groove (d) made lengthwise in its periphery, and turning in suitable boxes in the frame, midway between, anda short distance to its outer extremity, which extends downward and passes through the projecting end of a right angled plate (it), secured to the lower timber of the knife frame or gate, and is provided with a nut at its lower end below the right angled plate, and a shoulder above said plate, so as' to allow of it moving a short distance loosely in the plate.

` D is a spiral spring surrounding the horizontal shaft, between the collar or hub C, and the metallic box in which the back end of the shaft B turns, for pressing said collar or hub in contact with a clutch or notched wheel (i), secured permanently to the shaft B so as to cause the notch (e), of the hub C, to engage with the notches of said clutch (i), when desired.

E is a cam wheel or collar, surrounding the horizontal shaft B, and moving longitudinally on the same, being prevented from revolving on the same by a cog or pin (j) on its inner periphery, lentering the groove The cams on this wheel consist of four protuberances (lo c) rising from the periphery of the wheel or collar E the two marked at the back part of the collar being formed l immediately opposite each other and the remaining two (c) (likewise opposite each other) being formed in advance and midway between the first mentioned, so that the four will be the same distance apart. A circular groove (l) is formed in this wheel or collar in advance of these cams.

F is another hub or collar similar in diameter to the last mentioned, secured to the forward end of the horizontal shaft B, and having four cams orl teeth (m m) formed on its periphery, in the same relation to each other as the cams (7c a). These cams or teeth (m m) somewhat resemble a right angle triangle or 'a bill hook tooth, and the abrupt edges of the forward ones (m) are on a line with the centers of the forward cams (c) and the abrupt edges of the back ones (m) are on a line with the centers of the back cams (7c).

G is the vibrating carriage, consisting of screw in an oblong metallic plate (r), secured to the forward part of the ways', for holding said slotted bar and vibrating carriage in a horizontal position` H are rods extending downward from the vibrating carriage, one on either side of the cam wheel or collar E, curved toward each other at their lower ends, and arranged one in advance of the other, so as to bring the4 lower end of the right hand one. opposite the cams: (7c), as shown in Figs'. 4 and 5, and the lower end o-f the left hand one opposite the. cams (c), to canse the carriage to be vibrated alternately during the revolution of said cams'.

l is an. upright plate secured to the front part of the carriage and extending below the same and entering the; fgroove- (l), in the cam wheel or collar E, or causing' the same to be moved forward and back with the carriage.4 A

J are horizontal bolts,A inserted in longitudinal tubes (s), arranged on a linel with each other at the extremities: of the oblong metallic plate (7'), and closed at their outer ends, and provided 'with ears on their sides through which pass screws by which they are seemed to said plate. These bolts are made square on their sides, outside.. the tubes, and are made angular at their ends next each other to correspond with notches (o) into which they are pressed by small spirali springs (al), arranged within the tubes between their closedends, and the ends of the bolts J. The notches (t) in the edges of the slotted `bar (o) arerin the form o-f a right angle triangle, and those on;

one side are formed half their length in advance of those on the opposite side, so as only to allow the end of one of the bolts J to be fairly in a notch at a time.

K arey inclined bars, extending downward from the angular ends of the bolts J, through slots in the oblong plate (r) on either side ofthe colla-r or hub `F and bent toward each other at their lower ends so as to bring the endof the right hand one, op'- posite the back cams or notches (m), and the end of the left hand inclined bar opposite the forward cams (mf).

L is anindia rubber (or vother if desired) spring, secured to the top ofthe forward part ofthe frame, and attached by a screw, to the forward extremity of the slotted bar (Kob for pressing the notches in the sides of the bar against the ends of bolts J.

Operation: rPhe block ofk wood from which the shinglesI are toY be cnt being dogged to the carriage Gr, an up anddown motion is communicated to the sliding frame or gate (In), containing the knife,

g 'te secure by Letters Patent, is,

causing the projecting end of the right angled plate (h), to strike against the slionl-y -der of the connecting rod (g), in its" upward movement, and to turn the hub or collar C loosely on the horizontal shaft B, the

spiral spring D yielding to allow of this l result. jlecting arm of said plate '(h), will strike When the gate descends the prothe nut on the end of said connecting rod (g) and will cause the tooth (e), on the hub C, now engaged with the clutch (i), to turn the horizontal shaft B, so as to cause one of the back cams (k), to strike the end of the right hand bar H, so as toA vibrate the wood (the. screw (g) being the vibrating point) from which the shingles' are tobe cut to the right', a sufficient `dlstance to 'give the proper taper to the same, before the knife reaches the wood.. The. outer surface of the cams (k lc) being of the form of a segment of a circle, scribed from thev center of the shaft B, as represented in Fig. 5,

the carriage G will be hold firm in its position. by the action of the outer surfacesr of the cams (le), on the end of the right hand bar H unt-il the knife has. cut through the wood and the shingle is cut.. At the same time that. the back cam (k) is performing the oice above stated, the back cam or tooth (m), is operating on the right hand inclined bar K and forcing it with the right hand bolt J (the spring (u) in the tube (s) yielding to allow this. result) and I the instant the shingle is cut, the right hand (t)l formed in the edges of the slotted bar'l (Zi), in the slotted bur (o), andtheslotted bolt J is detached entirely from the notches bar is: forced forward with the carrie the required distance for a fresh cut, by t-e in-A dia rubber spring L, the progress of the slotted bar (o) being; arrested by the left hand bolt J enga ing in the next succeeding not-cli onitsside. hen the gate (bf) has der scended to its lowest point, the horizontal shaft B has been turned suiliciently to turn the cam (k) past the right hand bar H, and the cam or notch (m) past the right hand inclined bar K, so as to allow of the left bolt -VJ being pressed against the slotted bar (o) to arrest it at the next succeeding notch when disengaged from the right` hand bolt at' its opposite side. When the ate is' again raised and brought down the lorwaerd cam (t) ofthe sliding collar or wheel, wil-l be caused to strike the left hand bar H, so as .to vibrate the carriage to the left and the or notchr (mf to strike the left hand bar K, to release the bolt J from the slotted bar, and the same results will be produced as' in the foregoing; case except that the butt and taper of the shingle will be reversed.

` And so on in this' manner' the operation is continued, the block being moved ri "t and V left alternately, and forced toward t e knife .t until" it is entirely cut up.

What I claim as my invention and l. mode of moving the carriage G side wise, and forcing the' same toward the knife,

alternately, by means of the cams (7c c), spring 'L the Whole arranged and operated moving over the grooved shaft B, by means substantially in the manner, and for the of the bar I and. groove- (Z), operating on purpose herein set forth. the curved bars H, Vcams (m m) inclined WILLIAM WOOD. bars (lo) bolts J arranged in the tubes (s), Witnesses:

and pressed against the notches (t) of the A. J. LLOYD,

slotted bars (o) by the spiral springs (u) JOSEPH WEEKS. 

